1st: make a regular league (decide your rules) 2nd: announce that your league will be keeping a handfull of players (keeper) or most of your players with a rookie draft (dynasty)-- you dont have to have IDP for it to be a dynasty 3rd: at the beginning of next season have everyone pick who they are keeping and add them to their roster (they have a total keeper system in yahoo)
You have to decide what rules you want for your league. example: in a keeper, you can keep three guys per season or in a dynasty maybe you keep your entire team. If your interested, I am starting a new 3 sport dynasty league for football, basketball, and baseball. Email me at firstname.lastname@example.org.